Kimi K3.1 scores 55 on Artificial Analysis, placed on the Pareto line (artificialanalysis.ai)

The Kimi K3.1 Pro Intelligence model was officially released in October 2026 and has achieved a notable score of 55 on the Artificial Analysis Intelligence Index, placing it significantly above the median score of 27 among similar models. This proprietary model is distinguished by its capabilities to process both text and image inputs, generate output in text, and a substantial context window of 1 million tokens—equivalent to about 1,500 pages of text. Although it offers competitive pricing at $2.00 per million input tokens and $10.00 per million output tokens, its performance is mixed; it generates tokens at a slower pace of 73 tokens per second, below the median of 81. The significance of Kimi K3.1 for the AI and ML community lies in its blend of accessibility and advanced reasoning abilities, which offer potential for various applications—from creative tasks to complex problem-solving. While its verbosity is notable, generating 150 million tokens during evaluation—a stark contrast to the median 87 million—it also indicates an emphasis on comprehensive responses, particularly valuable for data-rich scenarios. Overall, Kimi K3.1 Pro's performance metrics and pricing make it a noteworthy contender in the competitive landscape of AI models, appealing to enterprises seeking robust yet reasonably priced AI solutions.